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Monday, August 11, 2014

How to Repair Household Appliances - Problem 5: Electric dryer won't heat

By the DIY experts of The Family Handyman Magazine



Photo 1: Test the heating element
Unplug the dryer, open the back, disconnect the heating element wires
and test the heating element with a multimeter.
 If you don't get a reading, the heating element is bad.
Photo 1A: Close-up of Photo 1
1A Heating element terminals

Photo 2: Replace the heating element - Open the top
Unscrew the two screws that hold the lint catcher to the top.
Then slide a stiff putty knife under the front corners and lift to unhook the lid.
Tilt it up to expose the top bracket of the heating element compartment.

Photo 3: Remove the top bracket
Unscrew the top bracket from the dryer frame and remove the bracket.
Photo 4: Replace the heating element
Lift out the metal heating element enclosure.
Remove the screw that secures the element and unplug the four wires.
Slide the element out of the enclosure. Install the new heating element in the reverse order.
Reinstall the top bracket, lower the lid and reinstall the two screws into the lint catcher.


Solutions
First check to make sure the dryer circuit breaker isn't tripped and that you're getting power to the dryer. If resetting the circuit breaker doesn't solve the problem, the next step is to test the thermofuse. Unplug the dryer and pull it away from the wall. Unscrew the metal cover on the back and remove it. The thermofuse is located on the back of the dryer (see Figure D and Photo1). Test the thermofuse (as shown above) and replace it if it's bad. Also visually inspect the thermostats for signs of burning or bad connections and replace them if they look bad.
If you don't find any other problems, test the heating element (Photo 1). If you don’t get any reading, replace it (Photos 2 - 4). The Kenmore dryer shown requires you to lift the top to reach the bracket that holds the heating element cover on. Some newer models don't require this step. Most Kenmore and Whirlpool dryers look like the dryers shown, but if you have another brand, the heating element will be in a different location. Testing and these elements is similar.
Figure D: Electric Dryer details
Access most electric dryer parts from the rear

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